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| Date | File | Tags |
Downloads (last 30 days) |
Comments | Ratings | |
| 22 Oct 2009 |
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Fourier Analysis of a Rectangular Pulse Fourier Analysis of the Rectangular pulse... | 193 | 1 | ||
| 05 Oct 2009 |
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A Guide to the FFT-2nd Edition Plus A guide to the use of the fft algorithm. | 240 | 15 | ||
| 02 Oct 2009 | Why use fftshift(fft(fftshift(x))) in Matlab instead of fft(x)? Explain why we use fftshift(fft(fftshift(x))) in Matlab instead of fft(x) | 131 | 0 | |||
| 28 Sep 2009 | Calibrated Spectral Analysis Simple Fourier Spectral Analysis of sound pressure time record using a calibrated with a calibration | 127 | 0 | |||
| 18 Sep 2009 |
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iff.m Interactive Fourier filter written as a single self-contained Matlab function. | 195 | 0 | ||
| 16 Aug 2009 |
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FFT filter - clean your signals and display results! Perform Fourier transform, filter in frequency domain, reconstruct the signal. | 186 | 0 | ||
| 10 Aug 2009 |
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MGWT Identification of protein coding regions using the Modified Gabor-wavelet transform. | 31 | 0 | ||
| 20 Jul 2009 |
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Surrogate time series and fields Algorithms to calculate 1D, 2D and 3D fields with your specified power spectrum and distribution. | 28 | 1 | ||
| 20 Jul 2009 |
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fourier series calculator initiates a GUI that graphs a function against the nth partial sum of its Fourier series | 194 | 0 | ||
| 16 Jul 2009 | Double Fourier Series Surface Plotting Double Fourier series plots and effects of the number of terms and oscillation smoothing are shown. | 53 | 0 | |||
| 17 Jun 2009 |
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Radially averaged power spectrum of 2D real-valued matrix Computes and plots radially averaged PSD of real matrix with a given spatial resolution. | 49 | 0 | ||
| 27 Apr 2009 |
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Didactic GUI Short time Fourier transform of an audio or data signal. | 28 | 0 | ||
| 02 Apr 2009 |
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Waveform Generator GUI Generate waveformed signal and play it. Interactive GUI with movable datapoints. | 82 | 1 | ||
| 26 Mar 2009 | 2D Fourier shift Cyclically shift a 2D matrix or image using the Fourier shift theorem. | 30 | 1 | |||
| 24 Mar 2009 | 1D Fourier shift Shift 1D signals using the Fourier shift theorem. | 35 | 0 | |||
| 22 Nov 2008 |
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Voice Audio Processing Basic processing of audio samples in wav format, using fourier transformation. | 103 | 1 | ||
| 26 Oct 2008 | Three Dimensional Analytical Magnetic Resonance Imaging Phantom in the Fourier Domain This software contains 2D and 3D Shepp-Logan phantoms in both the image and Fourier domains. | 37 | 3 | |||
| 02 Oct 2008 |
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fseriedemo Calculates and plots the Fourier Series Approximation to function f. | 177 | 2 | ||
| 01 Aug 2008 |
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Stationary phase approximation for performing Fourier Transforms Performs a Fourier Transform of a function using the stationary phase approximation | 112 | 0 | ||
| 24 Jun 2008 |
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HarmonicSeries.m Space-Time series (1D, 2D, or 3D) as the sum of cosines. | 134 | 4 | ||
| 29 Apr 2008 |
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Fourier Mellin Image Registration An implementation of Fourier Mellin Phase Correlation for Image Registration | 70 | 6 | ||
| 14 Mar 2008 | Sawtooth Wave Fourier Series Demo Sawtooth Wave Fourier Series Demo | 194 | 0 | |||
| 14 Mar 2008 | Triangle Wave Fourier Series Demo Triangle Wave Fourier Series Demo | 200 | 1 | |||
| 14 Mar 2008 | Square Wave Fourier Series Demo Square Wave Fourier Series Demo | 208 | 1 | |||
| 15 Jan 2008 |
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igft Computes the reconstruction of data from a user-given basis. Makes plots. | 142 | 0 | ||
| 17 Dec 2007 |
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Elliptical Fourier Shape Descriptors GUI Provides a GUI for the EFSD routines by the same author | 31 | 1 | ||
| 05 Nov 2007 |
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Fourier Series Tool Draw function (signal) plot by giving furier coefficents for complex exponential | 44 | 4 | ||
| 20 Jul 2007 | Calculate Wigner distribution Calculates the 2D Wigner distribution of a complex function. | 210 | 2 | |||
| 09 May 2007 |
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Split Step Fourier Method Simulate Pulse propagation in Fiber optics | 111 | 11 | ||
| 04 May 2007 |
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Interactive Fourier Filter (version 1.5) Interactive Fourier Filter for time-series signals. | 105 | 6 | ||
| 19 Apr 2007 |
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Wolfer sun spot data analyzed with the Fourier Calculator Fourier Analysis of Wolfer sunspot data | 22 | 0 | ||
| 18 Apr 2007 |
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Fourier Calculator for periodic signals A Fourier Calculator as Simulink model | 18 | 0 | ||
| 11 Apr 2007 | Sine and cosine integrals on non-uniform grid Calculates integrals f(x)*sin(k*x)*dx and f(x)*cos(k*x)*dx with high precision for any value of k | 20 | 3 | |||
| 09 Jan 2007 | Fast Fourier Transform Algorithm Implementation of FFT without using matlab built-in function of fft. | 235 | 10 | |||
| 18 Dec 2006 |
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FourierTransform2.m Fourier complex transform of a 2D real field. | 131 | 0 | ||
| 18 Dec 2006 |
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InverseFourierTransform2.m Inverse Fourier complex transform of a origin-symetrical complex transform (result 2D real field). | 180 | 0 | ||
| 13 Dec 2006 |
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FourierTransform.m Complex Fourier Transform of a real time series. From zero to Nyquist frequency. | 250 | 3 | ||
| 13 Dec 2006 |
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InverseFourierTransform.m Gets the real time series from the complex Fourier transform. | 133 | 0 | ||
| 11 Dec 2006 | Nonparametric Power Spectrum Estimation With Thresholded Cepstrum A function to nonparametrically estimate the power spectrum via thresholded cepstrum | 33 | 5 | |||
| 05 Dec 2006 | Radix2 decimation in time 1D fast Fourier transform FFT The function implement the 1D radix2 decimation in time fast Fourier transform FFT algorithm | 32 | 1 | |||
| 07 Nov 2006 | fshift Shifts the elements of an array by a (possibly non-integer) given number of elements. | 107 | 2 | |||
| 23 Oct 2006 | Elliptical Fourier shape descriptors Forward and reverse elliptical Fourier transforms of x,y data | 50 | 7 | |||
| 12 Oct 2006 | Sum of harmonics Sum of harmonic components through FORTRAN MEX file | 15 | 0 | |||
| 26 Sep 2006 |
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Singular Fourier-Pade approximation Circumvention of the Gibbs phenonmenon though Pade approximations with singularities | 85 | 0 | ||
| 21 Sep 2006 |
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Airy Function Generator Produces and Airy Pattern | 40 | 1 | ||
| 24 Aug 2006 | Waterfall FFT This program calculates the Waterfall FFT of a time history. | 58 | 5 | |||
| 06 Jul 2006 | dlagf01 Fourier cosine and sine transforms using lagged convolutions in double-precision (dlagf0 and dlagf1) | 128 | 0 | |||
| 06 Feb 2006 | DFT on a specified frequency spectral analysis (amplitude & phase) of recorded time-series data | 157 | 4 | |||
| 31 Jan 2006 | Fast Fourier Transform An fft algorithm using radix2. | 112 | 4 | |||
| 27 Dec 2005 | Partial Fast Fourier Transform Fast computation of part of an FFT using fractional fourier transform | 54 | 2 | |||
| 21 Dec 2005 | Fourier-Motzkin Elimination Fourier-Motzkin Elimination of a systen of inequalities (A*x <= b). | 36 | 1 | |||
| 28 Oct 2005 | ORTHPOLYFIT, ORTHPOLYVAL Direct transform of multivariate series to a polynomial domain by the Gaussian quadrature methods. | 14 | 0 | |||
| 13 Oct 2005 |
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fsa Fourier Spectral Analysis | 115 | 4 | ||
| 29 Aug 2005 |
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Seri Fourier Gui This figure display aspect of seri fourier. | 17 | 1 | ||
| 22 Aug 2005 | M- file for Audio spectral analysis audio analyser | 118 | 8 | |||
| 22 Apr 2005 |
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zoom FFT This program calculates the zoom FFT of a time history. | 69 | 4 | ||
| 07 Mar 2005 | FFT2 optimization Speed up FFT2. | 99 | 2 | |||
| 09 Dec 2004 |
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Find centroid of a monochrome laserspot within a dark background Find centroid of a monochrome laserspot within a dark background using Fourier. | 19 | 1 | ||
| 22 Nov 2004 |
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updownsample up/down sample an input matrix using the fourier domain. | 171 | 3 | ||
| 12 Jul 2004 | Fast Convolution Convolves two extremely large vectors in reasonable time. | 85 | 9 | |||
| 19 May 2004 | invspecgram Inverse of MATLAB´s specgram. | 73 | 4 | |||
| 12 May 2004 | Fourier Cosine Integral Fourier cosine integral. | 25 | 2 | |||
| 20 Jan 2004 |
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Fourier Series Surface Fitter (FSSF2) gui tool to fit Fourier series surfaces over scatter data. | 11 | 2 | ||
| 22 Aug 2003 |
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AD751 A tool for laid lines density measurements from paper structure reproductions. | 112 | 0 | ||
| 24 Jul 2003 | FastFFT Function A function to calculate frequency amplitudes, optionally makes Bode plots. | 46 | 7 | |||
| 12 Jun 2003 | fftd.m A dimensionless Discrete Fourier Transform program. | 115 | 5 | |||
| 10 Jun 2003 | fftd Computes the dimensionless fft. | 124 | 0 | |||
| 14 Apr 2003 | fourier_simple.m Plot Fourier series. | 29 | 4 | |||
| 03 Apr 2003 |
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MyFFT Script for generating pretty visualizations based on the Fast Fourier Transform of simple objects. | 26 | 2 | ||
| 25 Nov 2002 | ShiftImage Shifts an image using the Fourier shift theorem. | 20 | 4 | |||
| 04 Apr 2002 | Spectrogram (Short-time FT log magnitude) Computes the Short-time Fourier transform and displays as grayscale image or 3-D surface | 276 | 14 | |||
| 20 Jan 2002 | FFT Plot A quick-and-dirty FFT Plot | 101 | 10 | |||
| 03 Dec 2001 | RotateImage Image rotation performed by 3 separable skews | 34 | 2 | |||
| 03 Dec 2001 | pifft Homodyne reconstruciton of partial MRI k-space (Spatial Frequency) data | 31 | 0 | |||
| 06 Sep 2001 |
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FFT of a 256x256 Matrix FFT of a 256x256 Matrix | 22 | 10 | ||
| 27 Jun 2000 | fourier_by_jump.m FOURIER_BY_JUMP is a fourier analysis, especially made for sampled data, but it is not a DFT. | 13 | 0 | |||
| 16 Jun 2000 | ffth.m Half space FFT | 124 | 0 | |||
| 07 Dec 1998 | fftmspec.m Module Spectra of the Fourier Transform | 14 | 2 | |||
| 26 Feb 1998 | fourgraph Hemo of ploting a fourier series to a given one variable function. | 14 | 0 | |||
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